Komento & EasySocial - no notifications

Hi there
I purchased Komento to allow for site-wide comments integrating with EasySocial.
I installed the Komento "Comments" plugin as described in the manual.
Additionally, I installed the ES "Comments" app.
A screenshot of my EasySocial Integration settings is attached.

So, commenting works fine and comments show up in activity stream, too.
Problem is: Whatever I'm trying, no ES notifications will be generated.
I tried posting comments, liking, replying - no new notifications appeared.

I hope you can help me out here. Anything I forgot to do? Thanks.